Senior Windows & VMware Patch & Vulnerability Engineer

HCL SINGAPORE PTE. LTD.; Singapore; On-site; SGD 100,000 - 167,000; Full time

Job summary

HCL SINGAPORE PTE. LTD. is seeking an experienced Windows System Administrator to manage patching and vulnerability management for Windows Server and VMware ESXi, with a focus on keeping critical systems secure and compliant.

You will administer Windows/VMware environments, perform patch assessments, and coordinate with L2/L3 teams. The role requires hands-on experience with BigFix or SCCM, Active Directory, and a readiness to work weekends per roster.

Qualifications

• Bachelor's degree in Information Technology.
• 9–12 years of experience in Windows System Administration.
• Experience with patch management tools such as BigFix and SCCM.
• SLA-driven environment experience and strong communication.
• Weekend availability per roster and on-call support when needed.

Responsibilities

• Patch and vulnerability management for Windows Server and VMware ESXi.
• System administration of Windows/VMware environments.
• Perform patch assessments and plan deployments.
• Coordinate patching with Apps/Business Owners and Change Control.
• Monitor patching progress and produce compliance reports.
• Basic VM tasks on VCenter and escalation to L2/L3 as needed.
• Maintain BIOS/firmware updates and log monitoring.

Skills

Windows Server

VMware ESXi

Patch management

Vulnerability management

Active Directory

SCCM

BigFix

Automation

RAID

Clustering

Education

Bachelor's Degree in Information Technology

Tools

SCCM

BigFix

VCenter

Hyper-V

Job description

HCL SINGAPORE PTE. LTD. is seeking an experienced Windows System Administrator to manage patching and vulnerability management for Windows Server and VMware ESXi, with a focus on keeping critical systems secure and compliant.

You will administer Windows/VMware environments, perform patch assessments, and coordinate with L2/L3 teams. The role requires hands-on experience with BigFix or SCCM, Active Directory, and a readiness to work weekends per roster.